/*
 *  ====================================================================
 *  The Apache Software License, Version 1.1
 *
 *  Copyright (c) 2000 The Apache Software Foundation.  All rights
 *  reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *  notice, this list of conditions and the following disclaimer.
 *
 *  2. Redistributions in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in
 *  the documentation and/or other materials provided with the
 *  distribution.
 *
 *  3. The end-user documentation included with the redistribution,
 *  if any, must include the following acknowledgment:
 *  "This product includes software developed by the
 *  Apache Software Foundation (http://www.apache.org/)."
 *  Alternately, this acknowledgment may appear in the software itself,
 *  if and wherever such third-party acknowledgments normally appear.
 *
 *  4. The names "Apache" and "Apache Software Foundation" must
 *  not be used to endorse or promote products derived from this
 *  software without prior written permission. For written
 *  permission, please contact apache@apache.org.
 *
 *  5. Products derived from this software may not be called "Apache",
 *  nor may "Apache" appear in their name, without prior written
 *  permission of the Apache Software Foundation.
 *
 *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 *  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *  DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 *  ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 *  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 *  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 *  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 *  SUCH DAMAGE.
 *  ====================================================================
 *
 *  This software consists of voluntary contributions made by many
 *  individuals on behalf of the Apache Software Foundation.  For more
 *  information on the Apache Software Foundation, please see
 *  <http://www.apache.org/>.
 */
package org.apache.poi.hpsf.examples;

import java.io.*;
import org.apache.poi.hpsf.*;
import org.apache.poi.poifs.eventfilesystem.*;

/**
 * <p>Sample application showing how to read a OLE 2 document's
 * title. Call it with the document's file name as command line
 * parameter.</p>
 *
 * <p>Explanations can be found in the HPSF HOW-TO.</p>
 *
 * @author Rainer Klute (klute@rainer-klute.de)
 * @version $Id$
 * @since 2003-02-01
 */
public class ReadTitle
{

    public static void main(String[] args) throws IOException
    {
        final String filename = args[0];
        POIFSReader r = new POIFSReader();
        r.registerListener(new MyPOIFSReaderListener(),
                           "\005SummaryInformation");
        r.read(new FileInputStream(filename));
    }


    static class MyPOIFSReaderListener implements POIFSReaderListener
    {
        public void processPOIFSReaderEvent(POIFSReaderEvent event)
        {
            SummaryInformation si = null;
            try
            {
                si = (SummaryInformation)
                    PropertySetFactory.create(event.getStream());
            }
            catch (Exception ex)
            {
                throw new RuntimeException
                    ("Property set stream \"" +
                     event.getPath() + event.getName() + "\": " + ex);
            }
            final String title = si.getTitle();
            if (title != null)
                System.out.println("Title: \"" + title + "\"");
            else
                System.out.println("Document has no title.");
        }
    }

}
